Rope and cord tightening device



Nov. 17, 1931. K. HEISSER ROPE AND CORD TIGHTENING DEVICE Filed April25. 1931 gnowntoz Patented Nov. 17, 1931 PATENT OFFICE KARL HEISSE-R, OFELIZABETH, JERSEY ROPE AND CORD TIGHTENING DEVICE Application filedApril 25,

This invention relates to improvements in rope and cord tighteningdevices and one of the objects being to provide asimple and efficientmeans to tighten ropes and cords as for instance in service withclothes-lines, tent fastening ropes, tackles and many other purposes.

Another object is to produce a rope and cord tightening device which dueto its simplicity of design will permit its manufacture in largequantities and at the possibly lowest cost.

These and other objects I attain by the novel combination andarrangement of various parts and elements fully described in thisspecification and illustrated in the accompanying drawings in which:

Figure 1 illustrates such a rope and cord tightening device in action.

Figure 2 is a development or blank out of which the shell members willbe formed.

Figure 3 represents a partly sectional View disclosing the operatingmembers.

Figure l represents a sectional side view along lines l4 in Figure 3.

Figure 5 represents a sectional front view of a modified form of thedevice shown in Figure 3.

Figure 6 represents a sectional View along lines 6 6 in Figure 5.

Figure 7 represents an end View of Figure 6.

Figure 8 represents the front View of a still further modifiedarrangement, of such a rope tightening device.

Figure 9 represents a sectional side view of Figure 8. D

Figure 10 is an enlarged perspective vlew of the cord gripping membershown in Figure 8.

T he rope and cord tightening device illustrated in Figures 2, 3 and 4:,comprises the main enclosing shells 1 and 111, these shells beingidentically alike except oppositely formed. A flat disc-like roller 2,made of metal or composition, whose outer circumference is suitablycurved and may be either of smooth or knurled surface is provided tofreely move upon the inclined platform 9. The pin or rivet member 3fitting'loosely into 1931. Serial No. 532,767.

the centrally positioned hole in roller 2 ex tends through slots ft, inshell members 1 and la, and terminates into suitably shaped heads orbuttonsas shown in Figure 4, this pin serves the purpose of guiding andoperating roller 2.

Shell members 1 and 1a, as shown in F igure 4:, are shaped to provide,when assembled, two horizontal V-shaped grooves 5 and 5a. The interposedplatform 6, see Fig. 3, is prorided with oppositely positionedinterlocking slots 7' and tongues 8 for the purpose of securely holdingthe shell members together. The lower portions or aprons of the shellmembers 1 and 1a are bent upto form a suitably inclined platform 9 uponwhich roller 2 is supported. Protrusions 10, on either side, fold underplatform 9 to serve as a support and reinforce the platform structure.Another lug 11, positioned on the upper portion of shells 1 and 1a, isshaped to provide a passage permitting'the insertion of the knotted ropeor cord end 12, as indicated in Figure 1.

The shell members 1 and 1a are preferably made'of sheet metal and bothhalves may be pressed out of the same form or blank shown in Figure 2 bysimply reversing the bending operations to obtain a right and left handshell. The dash dotted lines in Figure 2 indicate the line along whichthe bending operation is performed.

In Figures 5, (land 7 a slightly modified form of the same arrangementis illustrated. Inplace ofa perforated and rough surfaced roller 2, asmooth surfaced disc 16 is utilized. The shell members 14 and 14a, arein this case made of castings and held together by means of eyelets 15.V

A still further modification is shown in Figures 8, 9 and 10. Inplace ofthe rollers 2 or 16, asliding platform 17,'provided with a toothedsurface 17 a, see Figure 10, and an operating finger 17b, is utilized.Shells 14 and 14a, for this purpose are recessed to form a slot 146 forfinger 17b.

The device functions as follows:

()ne end of a rope is inserted into thesleeve likeopening 11, formed bythe shell members and the end knotted for anchoring as shown inFigure 1. The other end of the rope, marked 12a, is then inserted andfed through the lower openings, tightened and when the desired tensionis reached, roller 2 by means of headed pin member 3, is pushed upwardlythereby securely wedging and holding the rope between the roller and theV shaped groove 5.

Now to release the rope all that is required is a slight pulling, as iftightening, on the overhanging portion 12a of the rope and roller 2 willautomatically release itself and slide down the inclined surface 9,ready for the next tightening operation.

The functioning of the modified device illustrated in Figures 5 and 6,is the very same with the exception that disc 16 is brought intoengagement by slightly tilting the device forwardly whereby disc 16 willroll into contact with the rope and automatically wedge itself tightlyinto position.

The wedge action of the flat wedge member 17, shown in Figures 8 and 9,is similar except this member is forced in and out of engagement bymeans of finger portion 17 6.

Having thus fully described my invention, I do not wish to confinemyself to the exact details as shown on the drawings, it being apparentthat there may be considerable variations in the details of theconstruction without departing from the spirit of this invention.

I claim:

1. In a rope tightening device of the character described, abi-sectional enclosing case comprising a pair of oppositely positionedhalve-shell members, fastening means to join said halve-shell members,said shell-members shaped to form two substantially horizontallypositioned V shaped guide channels, the upper channel terminating into asuitable rope fastening sleeve, the lower channel extending intovertically descending aprons terminating into suitable inclinedplatforms, said inclined platforms reinforced and held in position atboth ends by suitable supporting prongs forming an integral part of saidshell members, and a floating disc centrally perforated and freelymovable upon said inclined platforms, said floating disc in turnoperated by a loosely fitting headed pin member guided bycorrespondingly positioned slots provided in said apron portion of saidshell members, substantially as and for the purpose set forth.

2. In a rope tightening device of the char acter described, an enclosingcase comprising a pair of oppositely extending shell members, fasteningmeans to join said shell members, said shell members shaped to providean inclined platform at their base and two suitably positionedhorizontally arranged V shaped rope guide channels, the upper V shapedhorizontal rope guide channel further extended to form a bi-sectionalrope fastening sleeve, and a centrally perforated floating disc disposedto freely move

